Different validation rules based on key value

[eko3alpha]

It appears this validation middleware does not allow you to reference other $_POST values and create dynamic validation based on their values. Is there a way to do this?

For example, if a user selects NY as their state then I need them to input their email and license. Currently I'm doing it like this...

        $validators = [
            'state'   => v::subdivisionCode('US')->notOptional()
        ];

        $isStateNY = v::key('state', v::equals('NY'))->validate($_POST);

        if($isStateNY)
        {
            $validators['email']    = v::notOptional()->email();
            $validators['license'] =  v::notOptional();
        }

I tried doing this but it's not working.

        $validators = [
            'state'   => v::subdivisionCode('US')->notOptional(),
            'email'   => v::when(
                v::key('state', v::equals('NY')),
                v::notOptional()->noWhitespace(),
                v::alwaysValid()
            ),
            'license'  => v::when(
                v::key('state', v::equals('NY')),
                v::notOptional()->noWhitespace(),
                v::alwaysValid()
            )
        ];

I would like to pass in the Respect object without having to manually check the $_POST['state'] value. Can I format the $validator in a way that can reference other keys?

Here is the Respect way of doing it.

        $_POST = [
            'state' => 'NY',
            'email' => '[email protected]',
            'license' => 'MIT'
        ];

        $result = v::key('state', v::subdivisionCode('US')->notOptional())
        ->when(
            v::key('state', v::equals('NY')),            // if state = NY
            v::key('email', v::notOptional()->email()),  // then add validation to email
            v::alwaysValid()                             // else email is always valid
        )
        ->when(
            v::key('state', v::equals('NY')),            // if state = NY
            v::key('license',  v::notOptional()),        // then make license required
            v::alwaysValid()                             // else license is always valid
        ) 
        ->validate($_POST);

[DavidePastore]

Hi @eko3alpha . Sorry for the late response. You can try the version that is under development here: #40. It does support your use case and you can also see some green tests based on your issue: 15de8fd
Please, let me know if it works for you.